Chemical Bonding and Molecular Structure

Topics in this chapter

• VSEPR, Hybridization, and Geometry
• Molecular Orbitals and Bond Order
• Polarity and Hydrogen Bonding
• Orbital Overlap and Covalent Bonds
• Bond Length, Strength, and Sigma-Pi Bonds
• Fajans Rule and Covalent Character

Cheat sheet

Practice questions

1. Question 1Q-7CCCAA

   Which of the following species has the highest bond order?

   1. A.O2-
   2. B.O2
   3. C.O2+
   4. D.O22-
   See the answer and solution
2. Question 2Q-5AEF3E

   According to VSEPR theory, the correct geometry and shape of $SF_4$ molecule respectively are:

   1. A.Trigonal bipyramidal, See-saw
   2. B.Square planar, Tetrahedral
   3. C.Tetrahedral, See-saw
   4. D.Trigonal bipyramidal, T-shaped
   See the answer and solution
3. Question 3Q-587E46

   Which of the following molecules is expected to exhibit permanent dipole moment?

   1. A.BF3
   2. B.CO2
   3. C.H2S
   4. D.CCl4
   See the answer and solution
4. Question 4Q-2B2993

   The correct order of increasing bond angle in the given species is:

   1. A.H2O < NH3 < CH4
   2. B.NH3 < H2O < CH4
   3. C.CH4 < NH3 < H2O
   4. D.H2O < CH4 < NH3
   See the answer and solution
5. Question 5Q-2C89CC

   In which of the following pairs do both species have the same hybridization for the central atom?

   1. A.BeCl2 and HgCl2
   2. B.BF3 and NH3
   3. C.H2O and CO2
   4. D.NH3 and CH4
   See the answer and solution